Parsnips take a long time to germinate. Keep moist adn be patient.
Try to aim for a seed spacing of at least 0.98 inches (2.5 cm) and sow at a depth of around 0.47 inches (1.2 cm). Soil temperature should be kept higher than 16°C / 61°F to ensure good germination.By our calculations, you should look at sowing Tender and True about 15 days after your last frost date.
Transplant only until first true leaves develop. If not the root will be forked.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Tender and True is a half hardy plant.Tender & True